Most esteemed Master,
We received your last message with great concern. We held council and now, through this letter, inform you of our decision. The Brotherhood poses a danger. First and foremost to the further course of our trade agreement and thus to the king, the entire kingdom, and also to your life. Therefore, the most sensible step to take next would be to send out scouts and investigate upon which gods and upon what knowledge their magic is founded. Once you have uncovered this, we will acquaint the priests with your findings, so that together we may bring an end to this nuisance. Right this moment, the scholars are studying the ancient tomes. We will inform you immediately of any new discoveries by the usual means.
May Innos protect us.